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Doc. no: 312-0003-002-001 Rev 1.06 

 

Page 8 of 19

 

 

 

Specifications 312-0001: 

 
Output (speakers): 

 

Power (@ 8 ohm):  2 * 15 Watt 

Connections (2 pcs.):  2 pin 3.81mm screw block 

Speaker impedance:  

8 ohm (

Ω

)

 

THD+N @ 25 Watt 8 ohm:   < 0.25% (@1KHz - 10KHz) 

THD+N @ 1 Watt 8 ohm:  < 0.1% (@1KHz) 

Output efficiency:  up to 90% 

 
Audio inputs: 

 

Unbalanced inputs:  3 

Connectors:  3 pin 3.82mm screw block  

Input level (all inputs):  0VRMS

2VRMS Nominal: 

0.316 VRMS (-10dBV)  

Channel separation:  > 90 dB 

Input impedance: 

> 15 K ohm (

Ω

)

 

 
Direct buttons control 

 

Buttons functions:  Input sel, Mute, Volume 

Button mode:  Momentary  

Activation of button:  Low < (GND + 0.2 VDC) 

 

 

RS-232 Remote Control 

 

Control connected to:  RS-232-1 

Baud rate:  9600 

Data bits:  8 

Stop bits:  1 

Parity:  None 

Protocol:  Neets 

 
SD-Card (Storage card) 

 

Type:  Micro 

 SD, Standard type  

Card:   Max size 1GB 

File system:   FAT 16 

 
General 

 

Power input (AC):  100 

 240 VAC  (47-63 Hz) 

Power input (DC):  24 VDC 2.5A (Regulated) 

Storage temperature:  -30°C to 70°C (Non 

condensing) 

Operating temperature:  0°C to 45°C (Non condensing) 

Dimension (without 

connectors): 

70mm (2.7”) x 150mm (5.9”) 
x 40mm (1.6”)

 

Weight (no PSU):  250gramm (0.5 lbs) 

Weight (Shipping):  1000g (2.2 lbs) 

 
 

 

Summary of Contents for 312-0003

Page 1: ......

Page 2: ...pyrighted material of Neets All rights are reserved You may not allow any third party access to content information or data in this manual without Neets express written consent CHANGES Neets reserve the right to change the specification and functions of this product without any notice Questions AFTER reading this manual can be addressed to your local dealer or Neets A S DK 8700 Horsens by E Mail S...

Page 3: ...ong image 6 TSA 07 06 09 Image and text on page changed 19 JML 23 06 09 Added description of how to ask for current state and minor changes in examples 15 16 SDV 27 01 10 Text added 5 SDV 15 02 10 New pictures All TSA 08 06 11 Removed wake on signal All DB 13 12 11 Contact information 1 From serial number and forward there is no longer the possibility to use Wake on Signal 312 0001 110700050 312 0...

Page 4: ...onnections on units 312 0002 9 Left side 9 Top end 9 Right side 9 Specifications 312 0002 10 Connections on units 312 0003 11 Left side 11 Top end 11 Right side 11 Specifications 312 0003 12 Special functions on 312 0003 13 Homepage control 13 Fault finding 13 Amplifier Communications protocol 14 Admin audio 14 Input 1 4 14 Microphone 14 Admin 14 RS 232 1 to 3 15 Global functions 15 Examples for u...

Page 5: ... Yes Yes Unbalanced line input 0 316 VRMS 10dBV 3 4 3 Balanced line input 0 316 VRMS 10dBV 0 0 1 Preamplifier out Level control depending on volume settings 0 0 1 Microphone input Phantom power possible 24VDC 0 0 1 Direct connection for Mute button Active pulse 0 2 VDC Yes Yes Yes Direct connection for volume up down Active pulse 0 2 VDC Yes Yes Yes Direct connection for input selection Active pul...

Page 6: ...e applications is a method that sends a DC electrical voltage through microphone cables It is best known as a common power source for condenser microphones though many active DI boxes also use it In Neets Audio Amplifier version 3 we use 24 VDC as phantom power RS 232 cable connections To connect the Audio Amplifier you must wire the RS 232 cable as shown here to the right This is a Female 9 pin S...

Page 7: ... you MUST disconnect the power from the audio amplifier x Then remove the SD Card from the unit by pushing the SD Card gently into the unit about 1mm either by using your finger tips or a flat screwdriver and then let go and it will slide out x Place the Micro SD card into the adapter e g USB adapter x Connect the adapter to your computer x Browse to the root of the folder of you SD card e g L and...

Page 8: ...in 2 Volume control 3 RS 232 control port 4 Standby LED 5 Mute LED 6 Input 3 LED 7 Input 2 LED 8 Input 1 LED 9 Right speaker 10 Left speaker Top end Number Description 11 Micro SD Card Right side Number Description 12 Line Input 3 13 Line Input 2 14 Line Input 1 15 Input select switch 16 Mute input 17 Input select ...

Page 9: ...e 15 K ohm Ω Direct buttons control Buttons functions Input sel Mute Volume Button mode Momentary Activation of button Low GND 0 2 VDC RS 232 Remote Control Control connected to RS 232 1 Baud rate 9600 Data bits 8 Stop bits 1 Parity None Protocol Neets SD Card Storage card Type Micro SD Standard type Card Max size 1GB File system FAT 16 General Power input AC 100 240 VAC 47 63 Hz Power input DC 24...

Page 10: ...control port 1 4 RS 232 control port 2 5 Standby LED 6 Mute LED 7 Input 4 LED 8 Input 3 LED 9 Input 2 LED 10 Input 1 LED 11 Right speaker 12 Left speaker Top end Number Description 13 Micro SD Card Right side Number Description 14 Line Input 4 15 Line Input 3 16 Line Input 2 17 Line Input 1 18 Input select switch 19 Mute input 20 Input select ...

Page 11: ... 0 2 VDC RS 232 Remote Control Control connected to RS 232 1 Baud rate 9600 Data bits 8 Stop bits 1 Parity None Protocol Neets RS 232 loopthru External device Baud rates 1200 115200 bits sec Parity Even Odd None Data bits 7 8 Stop bits Other information 1 1 2 Control connected to RS 232 1 Device connected to RS 232 2 Control possible to use All Neets minus Neets Control QueBec SD Card Storage card...

Page 12: ...ontrol port 1 6 Standby LED 7 Mute LED 8 Input 4 LED 9 Input 3 LED 10 Input 2 LED 11 Input 1 LED 12 Left speaker 13 Right speaker 14 Preamplifier out Top end Number Description 15 Micro SD Card Right side Number Description 16 Balanced line Input 4 17 Microphone input 18 Line Input 3 19 Line Input 2 20 Line Input 1 21 Input select switch 22 LAN network connector 23 Mute input 24 Input select ...

Page 13: ...d to RS 232 1 Baud rate 9600 Data bits 8 Stop bits 1 Parity None Protocol Neets RS 232 loopthru External device Baud rates 1200 115200 bits sec Parity Even Odd None Data bits 7 8 Stop bits Other information 1 1 2 Control connected to RS 232 1 Device connected to RS 232 2 Control possible to use All Neets minus Neets Control QueBec Network LAN Speed 10 100Mbit Duplex Half and full DHCP Default set ...

Page 14: ...Please remember the default IP address is 192 168 254 252 username and password is both Admin case sensitive Fault finding Fault Solution LED indication on Audio amplifier Check you speaker cable and reboot unit Have you been playing to loud There has been put new firmware on the unit Please reboot unit Did you remove the Micro SD card Then insert it again Please contact your distributor or Neets ...

Page 15: ...PUT input BAL data 79 79 R W 0 Microphone Description Syntax Data Read Write Default Microphone gain NEAMP1 MICGAIN data 0 63 R W 25 Phantom power NEAMP1 PHANTOMPOWER data ON OFF R W OFF Admin Description Syntax Data Read Write Default Set amp IP address NEAMP1 IPADDRESS data xxx xxx xxx xxx R W 192 168 254 252 Set amp sub net NEAMP1 IPSUBNET data xxx xxx xxx xxx R W 255 255 255 0 Set amp gateway ...

Page 16: ...an e g Set volume 0 51 Select input 1 4 or Set balance 79 79 and so on can be used with INC increment 1 or DEC decrement 1 commands E g if the volume is 25 and you send NEAMP1 VOL DEC CR then the volume will be 24 When asking for a current state of a command simply replace the data in the command with All the commands must be terminated with CR 0x0D in HEX value When a command is successful execut...

Page 17: ...EAMP1 POWER OFF CR x Response NEAMP1 OK CR x Send NEAMP1 VOL 20 CR x Response NEAMP1 OK CR x Send NEAMP1 SAVE TRUE CR x Response NEAMP1 OK CR Now we want to turn on the unit send the following commands to the audio amplifier NOTE CR is the 0x0D HEX value for Carriage Return x Send NEAMP1 POWER ON CR x Response NEAMP1 OK CR Now we want to mute and on mute the audio amplifier send the following comm...

Page 18: ...ation for all models of our amplifier The Neets Control EU professional is controlling the audio amplifier on RS 232 port 2 on the control system and is connected to RS 232 1 on the audio amplifier Furthermore the Neets Control EU professional is controlling the screen thru I O and the projector on RS 232 port 1 ...

Page 19: ... is controlling the audio amplifier on the RS 232 port on the control system and is connected to RS 232 1 on the audio amplifier The projector is connected to the loopthru port on the amplifier RS 232 2 and therefore the Neets Control FoXtrot is also controlling the projector thru the audio amplifier The two I O on the Neets Control FoXtrot is controlling the screen up down ...

Page 20: ... Neets Control EU professional is controlling the audio amplifier on the LAN port on the control system The Audio amplifier is controlling the projector on RS 232 1 and the 4 Relay box on RS 232 2 screen up down so here we uses 2 of the 3 RS 232 ports on the Audio amplifier and only the LAN connector on the Neets Control EU professional ...

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